Coelocnemis dilaticollis
In 3 days ~20% in a week ~30%
Coelocnemis dilaticollis, the California broad-necked darkling beetle, is a species of darkling beetle in the family Tenebrionidae. It is found mainly in the western United States and western Canada. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Yellowstone National Park | 🇺🇸 United States | |
| 2 | Sequoia and Kings Canyon National Parks | 🇺🇸 United States | |
| 3 | Grand Teton National Park | 🇺🇸 United States | |
| 4 | Yosemite National Park | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a California Broad-Necked Darkling Beetle sighting in Yosemite National Park on a given day, based on 11 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 134th most-seen of the 227 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
April–June and August–October
In those months about 10% of wildlife watchers report a California Broad-Necked Darkling Beetle in Yosemite National Park on a given day, against under 5% in July and November–March, the lowest months. Those are among Yosemite National Park's driest months, with about 45 mm of rain a month against 220 mm in January.
Between 4 and 7 pm
Across all the parks we cover, that three-hour window holds the most California Broad-Necked Darkling Beetle sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is most active around dawn and dusk.
Among the best
Of the 4 parks where we can rate California Broad-Necked Darkling Beetle sightings, Yosemite National Park ranks 4th at about 10%, level with the leaders once rounded. The best odds are in Yellowstone National Park (United States, about 10%), Sequoia and Kings Canyon National Parks (United States, about 10%) and Grand Teton National Park (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the California Broad-Necked Darkling Beetle is recorded against all the insects logged in Yosemite National Park (11 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
